# SHv4 Calculator vs Slacker Virtual Remote

SHv4 Calculator and Slacker Virtual Remote both sit at 5.0 stars, but that hides the real split: 100% of Slacker Virtual Remote's written reviews are positive against 67% of SHv4 Calculator's. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for SHv4 Calculator against 5.0 for Slacker Virtual Remote. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews are what separate them: 67% of SHv4 Calculator's written reviews are positive against 100% of Slacker Virtual Remote's.

SHv4 Calculator ships an update every 3 months, Slacker Virtual Remote every 6 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SHv4 Calculator | Slacker Virtual Remote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/shv4-calculator/id979817071/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/slacker-virtual-remote/id1518520216/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 1 MB | 27 MB |
| Requires iOS | **12.0** | 12.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HealTech Electronics Ltd.](https://appshunter.io/developer/979817070) | [Motool Inc](https://appshunter.io/developer/1444719112) |

## What reviewers say

### SHv4 Calculator

[App page](https://appshunter.io/ios/app/shv4-calculator/id979817071)

Calculate your vehicle's speedometer error and get setup instructions for a SpeedoHealer module. This free, ad-free tool helps correct inaccurate speed and odometer readings on most motorcycles and some cars. It offers troubleshooting information and is compatible with non-cable driven speedometers.

**Highlights:** Calculate speedometer error, Generate SpeedoHealer v4 setup instructions, Access troubleshooting information, Ad-free experience, Offline functionality, Compatible with most motorcycles and cars

**In-app purchases:** none


### Slacker Virtual Remote

[App page](https://appshunter.io/ios/app/slacker-virtual-remote/id1518520216)

Transform your smartphone into a remote display for a digital suspension tuner. View real-time measurements and control device functions like reset and auto-zero. This version offers core remote capabilities without saving settings.

**Highlights:** Remote display for suspension tuner, Real-time measurement viewing, Control reset function, Control auto-zero function, Bluetooth connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SHv4 Calculator free?

SHv4 Calculator is free to download, with no in-app purchases.

### Is Slacker Virtual Remote free?

Slacker Virtual Remote is free to download, with no in-app purchases.

### Which has better reviews, SHv4 Calculator or Slacker Virtual Remote?

SHv4 Calculator and Slacker Virtual Remote are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do SHv4 Calculator or Slacker Virtual Remote have ads?

Neither SHv4 Calculator nor Slacker Virtual Remote shows ads.

### Which is updated more often, SHv4 Calculator or Slacker Virtual Remote?

SHv4 Calculator ships an update every 3 months, and Slacker Virtual Remote every 6 months. Most recently, SHv4 Calculator was updated on October 13, 2026 and Slacker Virtual Remote on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*